Salt Mineralvand fra Danmarks dybere Undergrund
DOI:
https://doi.org/10.34194/raekke4.v4.7006Abstract
During the drilling operations of Danish American Prospecting Co. in Denmark 1946-1959 several mineral water occurences were encountered in the subsurface.
Samples taken from Zechstein deposits show a composition ranging from concentrated almost pure MgCl2- or CaCl2-solutions to solutions more dominated by NaCl. Usually they seemn to be migrating solutions which have secondarily reacted with the salt deposits they have penetrated.
Samples from Jurassic and Danian deposits are more diluted NaCl-solutions with a minor content of CaCl2 and MgCl2.
The diluted mineral waters of Denmark are regarded as mixtures of concentrated salt solutions and fresh water.
Uniform composition of diluted mineral waters does not necessitate a uniform composition of the original concentraled salt solutions. It may also be brought about by ion exchange reactions between clays and salt solutions of different composition as e.g. the above-mentioned solutions encountered in the Zechstein deposits.
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